Oil and gas processing device membrane assembly multi-flow interactive sealing performance test tooling

Abstract

The utility model relates to oil and gas treatment device membrane component multistream direction interactive sealing performance test frock, include: test pipe component, it has annular boss structure on it, first sealing element, set up in test pipe component one end, second sealing element, set up in test pipe component's other end, third sealing element, set up in the outside base surface of annular boss structure, wherein, test pipe component has the gas passage through its both ends, when carrying out air tightness detection, test pipe component installs in the shell of waiting for measuring, first sealing element, second sealing element and third sealing element respectively correspond the sealing point setting of shell of waiting for measuring, the utility model installs test pipe component in the shell, and then passes into the gas detection in the shell, under the condition that the sealing point position sealing property is insufficient, can intuitively judge the point position of leak point.

Description

Technical Field

[0001] This utility model relates to the field of membrane module testing fixtures, and in particular to a multi-flow interactive sealing performance testing fixture for membrane modules in oil and gas treatment devices. Background Technology

[0002] As the core functional unit of the tertiary oil and gas recovery system, the performance of the membrane module directly determines the processing capacity and operating efficiency of the entire system. In the tertiary oil and gas recovery process, the membrane module undertakes the key task of oil and gas separation and purification. Therefore, the quality of its sealing performance has a crucial impact on the stable operation of the system, the recovery effect, and the compliance of emissions.

[0003] Membrane module sealing performance testing typically employs an overall testing approach, where the membrane core is assembled into the complete membrane module structure before undergoing an overall airtightness pressure test. In existing membrane module structures, the membrane core shell is usually made of resin material, while the interior is a polymer composite membrane layer. There are three critical sealing points between the membrane core shell and the membrane core, and their sealing failure will directly affect the overall performance of the module. If the membrane core shell fails to seal, the gas at both ends can communicate with each other due to the hollow shape of the membrane core. Although the overall airtightness pressure test method can assess the overall sealing condition of the module, it is difficult to independently and accurately locate and determine the specific sealing points. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the fact that the existing technology cannot intuitively determine the location of the leak when directly using overall pressure testing to test the air tightness of the membrane module. It proposes a multi-flow interactive sealing performance testing fixture for membrane modules of oil and gas treatment devices. By installing the test tube component inside the shell and then introducing gas into the shell for testing, the location of the leak can be intuitively determined when the sealing point is insufficient.

[0005] To solve the above-mentioned technical problems, this utility model provides a multi-flow interactive sealing performance testing fixture for membrane modules of oil and gas treatment devices, including: a test tube component having an annular boss structure; The first sealing element is located at one end of the test tube component; The second seal is located at the other end of the test tube component; The third sealing element is located on the outer base surface of the annular boss structure; The test tube component has a gas channel running through both ends. When performing airtightness testing, the test tube component is installed inside the housing to be tested. The first seal, the second seal, and the third seal are respectively set at the sealing points of the housing to be tested.

[0006] In one embodiment of this utility model, the test tube component includes: Connecting cylinder; The end cap structure has two caps, which are respectively sealed and fixed to both ends of the connecting cylinder; There are two connecting ports, each located on one of the two end cap structures; One of the end cap structures has an annular boss structure.

[0007] In one embodiment of this utility model, the first sealing element and the second sealing element are respectively disposed on the outer side of the ends of the two connecting pipe ports.

[0008] In one embodiment of this utility model, the end cap structure includes: The first end cap is configured as a first cover body and a first connecting sleeve; The second end cap is configured as a second cover body and a second connecting sleeve; Both the first cover and the second cover have through holes for connecting the pipe openings. The first connecting sleeve and the second connecting sleeve are respectively sealed and connected to both ends of the connecting cylinder body; The two connecting pipes are connected to the inside of the connecting cylinder through a through-hole structure to form a gas channel.

[0009] In one embodiment of the present invention, the first cover extends radially outward from the connection position with the first connecting sleeve to form an annular boss structure, and an annular groove is provided on the outer circumferential surface of the first cover.

[0010] In one embodiment of the present invention, the second cover extends radially outward from the connection position with the second connecting sleeve to form an annular boss structure, and an annular groove is provided on the outer circumferential surface of the second cover.

[0011] In one embodiment of this utility model, the connecting pipe port is provided with an installation groove, and the first sealing member and the second sealing member are respectively installed in the two installation grooves.

[0012] In one embodiment of this utility model, the third sealing element is installed in the annular groove.

[0013] In one embodiment of this utility model, the mounting groove is an annular groove that surrounds the outer wall of the connecting pipe opening, and its cross-section is stepped.

[0014] In one embodiment of this utility model, the annular groove has a stepped cross-section.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects: The multi-directional interactive sealing performance testing fixture for the oil and gas treatment device membrane module of this utility model is used to test the sealing performance of the first, second, and third sealing elements by installing the test tube component inside the housing and then introducing gas into the housing. In the case of insufficient sealing performance at the sealing point, the location of the leak can be directly determined. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Figure 1 This is a schematic diagram of the main structure of the test tube component of this utility model; Figure 2 This is a cross-sectional structural diagram of one embodiment of the present invention; Figure 3 This is a cross-sectional structural diagram of the third sealing element of this utility model when it is located in the first end cap; Figure 4 This is a cross-sectional structural diagram of the third sealing element of this utility model when it is located in the second end cap; Figure 5 This is a cross-sectional structural diagram of an embodiment of the present invention having an mounting groove and an annular groove.

[0017] Explanation of reference numerals in the accompanying drawings: 11. Annular boss structure; 12. Gas passage; 13. Connecting cylinder; 14. End cap structure; 141. First end cap; 1411. First cover body; 1412. First connecting sleeve; 142. Second end cap; 1421. Second cover body; 1422. Second connecting sleeve; 143. Through hole structure; 144. Annular groove; 15. Connecting pipe port; 151. Mounting groove; 2. First sealing element; 3. Second sealing element; 4. Third sealing element. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0019] In the prior art, the sealing points of the membrane core shell and the membrane core are distributed at two ends and one near the end. There is a gas interface on one end face of the membrane core shell, and there is another gas interface at that end. There is a third gas interface at the other end, which is used to vent air into the interior during testing to test the sealing performance of each sealing point.

[0020] Reference Figure 1As shown, the multi-flow interactive sealing performance testing fixture for the membrane module of the oil and gas treatment device of this utility model includes: a test tube component having an annular boss structure 11 on it; The first sealing element 2 is located at one end of the test tube component; The second seal 3 is located at the other end of the test tube component; The third sealing element 4 is disposed on the outer base surface of the annular boss structure 11; The test tube component has a gas channel 12 that runs through both ends of it. When performing airtightness testing, the test tube component is installed inside the shell to be tested. The first seal 2, the second seal 3 and the third seal 4 are respectively set to the sealing points of the shell to be tested. The core of this solution lies in using a centrally located test tube component with three corresponding sealing points fitted with seals to replace the membrane core for airtightness testing. This avoids the inability to determine the location of leaks due to the structural characteristics of the membrane core during testing. Specifically, the two ends of the test tube component are placed inside the outer casing at the positions where the membrane core was originally installed. At this time, only the internal gas channel 12 of the test tube component can allow gas to pass through. The outer casing has three gas interfaces, located at one end of the gas channel 12, between the first seal 2 and the third seal 4, and between the second seal 3 and the third seal. In actual testing, one of the three gas interfaces serves as the gas inlet, and the other two serve as the gas outlets.

[0021] For example, in a specific implementation process, the end with the first sealing element 2 is used as the gas inlet. At this time, the gas is introduced through the gas channel 12 to the other end of the gas channel 12. If the second sealing element 3 at that end is properly sealed, no gas will leak out from the gas interface between the second sealing element 3 and the third sealing element 4. If gas leaks out, it means that there is a leak at the sealing point corresponding to the second sealing element 3.

[0022] Reference Figure 2 As shown, the test tube component includes: Connecting cylinder 13; Two end cap structures 14 are provided, which are respectively sealed and fixed to both ends of the connecting cylinder 13; There are two connecting pipe ports 15, which are respectively installed on the two end cap structures 14; One of the end cap structures 14 has an annular boss structure 11.

[0023] The advantage of this solution is that by setting the structure of the test tube to resemble the shape of the membrane core, it can achieve better simulation results during actual testing, making the test results closer to the test results when the membrane core is installed.

[0024] Specifically, during the implementation process, the two connecting pipe ports 15 serve as two sealing connection points for the shell sealing test, and the other sealing point is located at the position of the annular boss structure 11. At this time, the test is performed by allowing air to pass through one of the gas ports and allowing air to exit through the other two gas ports.

[0025] For example, during actual testing, gas is introduced through the gas interface between the second seal 3 and the third seal 4. At this time, the gas is located inside the outer shell between the first seal 2 and the third seal 4, that is, outside the connecting pipe port 15. If the gas interface where the first seal 2 is installed leaks, the airtightness of the sealing point corresponding to the first seal 2 is insufficient; if the interface between the second seal 3 and the third seal 4 leaks, the sealingness of the sealing point corresponding to the third seal 4 is insufficient.

[0026] like Figure 1 , 2 As shown, the first sealing element 2 and the second sealing element 3 are respectively disposed on the outer side of the ends of the two connecting pipe ports 15. In this scheme, the first sealing element 2 is disposed on the outer wall of the connecting pipe port 15, and the second sealing element 3 is also disposed on the outer wall of the connecting pipe port 15. Correspondingly, the sealing performance of the outer shell is tested for the sealing performance of the two sealing elements respectively.

[0027] like Figure 3 As shown, the end cap structure 14 includes: The first end cap 141 is configured as a first cover body 1411 and a first connecting sleeve 1412; The second end cap 142 is configured as a second cover body 1421 and a second connecting sleeve 1422; The first cover 1411 and the second cover 1421 are both provided with through hole structures 143 that connect to the connecting pipe 15. The first connecting sleeve 1412 and the second connecting sleeve 1422 are respectively sealed and connected to both ends of the connecting cylinder 13; In this scheme, the first connecting sleeve 1412 and the second connecting sleeve 1422 are welded and fixed to both ends of the connecting cylinder 13, so that the overall structure forms a structure in which only the connecting pipe ports 15 at both ends can enter the interior of the connecting cylinder 13. That is, the two connecting pipe ports 15 are connected to the interior of the connecting cylinder 13 through the through hole structure 143 to form a gas channel 12. This solution ensures that the airtightness test can be performed while greatly replicating the membrane core structure, and sets sealing elements at the locations where the membrane core structure needs to be sealed to the outer shell for airtightness testing.

[0028] like Figure 3As shown, the first cover 1411 extends radially outward from the connection position with the first connecting sleeve 1412 to form an annular boss structure 11. An annular groove 144 is provided on the outer circumferential surface of the first cover 1411. In this solution, the part of the first cover 1411 extending out of the first connecting sleeve 1412 is used as an annular boss structure, and an annular groove 144 is provided on the outer side wall for installing the third sealing element 4. That is, the third sealing element 4 is installed in the annular groove 144 to limit the installation position of the third sealing element 4, so that it is closer to the state of the membrane core being installed in the outer shell for testing.

[0029] like Figure 4 As shown, the second cover 1421 extends radially outward from the connection position with the second connecting sleeve 1422 to form an annular boss structure 11. An annular groove 144 is provided on the outer circumferential surface of the second cover 1421. In this scheme, the part of the second cover 1421 extending out of the second connecting sleeve 1422 is used as the annular boss structure, and an annular groove 144 is provided on the outer side wall for installing the third seal 4. That is, the third seal 4 is installed in the annular groove 144 to limit the installation position of the third seal 4, so that it is closer to the state of the membrane core being installed in the outer shell for testing.

[0030] like Figure 5 As shown, the connecting pipe 15 is provided with an installation groove 151. The first sealing element 2 and the second sealing element 3 are respectively installed in the two installation grooves 151 to limit the position of the first sealing element 2 and the second sealing element 3, so that they are closer to the state of the membrane core structure installed in the outer shell.

[0031] like Figure 5 As shown, the mounting groove 151 is an annular groove that surrounds the outer wall of the connecting pipe 15. Its cross-section is stepped. The annular groove 144 has a stepped cross-section. Therefore, if the sealing is insufficient, different sizes of seals can be replaced to retest and finally find a seal that can achieve the required sealing performance.

[0032] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A multi-directional interactive sealing performance testing fixture for membrane modules in an oil and gas treatment device, characterized in that, include: The test tube component has an annular boss structure. A first sealing element is disposed at one end of the test tube component; A second seal is provided at the other end of the test tube component; The third sealing element is disposed on the outer base surface of the annular boss structure; The test tube component has a gas channel running through both ends. When performing airtightness testing, the test tube component is installed inside the housing to be tested, and the first seal, the second seal, and the third seal are respectively set at the sealing points of the housing to be tested.

2. The multi-directional interactive sealing performance testing fixture for membrane modules of an oil and gas treatment device according to claim 1, characterized in that: The test tube component includes: Connecting cylinder; The end cap structure has two caps, which are respectively sealed and fixed to both ends of the connecting cylinder; There are two connecting pipe ports, which are respectively installed on the two end cap structures; One of the end cap structures has the annular boss structure.

3. The multi-directional interactive sealing performance testing fixture for membrane modules of an oil and gas treatment device according to claim 2, characterized in that: The first seal and the second seal are respectively disposed on the outer side of the ends of the two connecting pipe ports.

4. The multi-directional interactive sealing performance testing fixture for membrane modules in an oil and gas treatment device according to claim 2, characterized in that: The end cap structure includes: The first end cap is configured as a first cover body and a first connecting sleeve; The second end cap is configured as a second cover body and a second connecting sleeve; Both the first cover and the second cover have through holes that connect to the connecting pipe opening. The first connecting sleeve and the second connecting sleeve are respectively sealed and connected to both ends of the connecting cylinder body; The two connecting pipe ports are connected to the interior of the connecting cylinder through the through hole structure to form the gas channel.

5. The multi-directional interactive sealing performance testing fixture for membrane modules of an oil and gas treatment device according to claim 4, characterized in that: The first cover extends radially outward from the connection position with the first connecting sleeve to form the annular boss structure, and an annular groove is provided on the outer circumferential surface of the first cover.

6. The multi-directional interactive sealing performance testing fixture for membrane modules in an oil and gas treatment device according to claim 4, characterized in that: The second cover extends radially outward from the connection position with the second connecting sleeve to form the annular boss structure, and an annular groove is provided on the outer circumferential surface of the second cover.

7. The multi-directional interactive sealing performance testing fixture for membrane modules in an oil and gas treatment device according to claim 3, characterized in that: The connecting pipe is provided with an installation groove, and the first sealing element and the second sealing element are respectively installed in the two installation grooves.

8. The multi-directional interactive sealing performance testing fixture for membrane modules of an oil and gas treatment device according to claim 5 or 6, characterized in that: The third seal is installed in the annular groove.

9. The multi-directional interactive sealing performance testing fixture for membrane modules in an oil and gas treatment device according to claim 7, characterized in that: The mounting groove is an annular groove that surrounds the outer wall of the connecting pipe opening, and its cross-section is stepped.

10. The multi-directional interactive sealing performance testing fixture for membrane modules of an oil and gas treatment device according to claim 8, characterized in that: The annular groove has a stepped cross-section.

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